Alert archive / Arkansas / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 162

April 4, 20084 states

The Storm Prediction Center issued this severe thunderstorm watch at Apr 4, 2008, 3:55 AM CDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 4, 2008, 3:55 AM CDT (08:55 UTC)
Expired
Apr 4, 2008, 11:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 59 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Sevier County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, East Carroll Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Bolivar County, MS, Grenada County, MS, Leflore County, MS, Sunflower County, MS, Washington County, MS, Bowie County, TX, Camp County, TX, Cass County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Red River County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 73 km from the middle of the area, began a volume at 08:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 4, 4:16 AM CDTSevere Thunderstorm WarningSHVHempstead, Little River, Miller44 min
Apr 4, 4:27 AM CDTFlash Flood WarningLZKArkansas, Clark, Cleveland, Dallas, Grant, Jefferson and 5 more3 hr
Apr 4, 5:00 AM CDTSevere Thunderstorm WarningSHVColumbia, Hempstead, Lafayette, Miller, Nevada60 min
Apr 4, 5:35 AM CDTSevere Thunderstorm WarningSHVBowie, Cass, Morris40 min
Apr 4, 5:53 AM CDTFlash Flood WarningSHVHoward, Little River, Sevier6 hr
Apr 4, 5:58 AM CDTFlash Flood WarningLZKClark, Garland, Grant, Hot Spring, Lonoke, Montgomery and 3 more3 hr
Apr 4, 6:05 AM CDTSevere Thunderstorm WarningJANCarroll, Grenada, Leflore, Montgomery, Webster25 min
Apr 4, 6:26 AM CDTFlash Flood WarningLZKArkansas, Bradley, Calhoun, Cleveland, Dallas, Desha and 3 more3 hr
Apr 4, 6:41 AM CDTSevere Thunderstorm WarningLZKBradley, Calhoun49 min
Apr 4, 7:24 AM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Rusk51 min
Apr 4, 7:28 AM CDTFlash Flood WarningLZKArkansas, Clark, Cleveland, Dallas, Grant, Jefferson and 5 more3 hr
Apr 4, 8:07 AM CDTFlash Flood WarningSHVNacogdoches, Panola, Rusk, Shelby3 hr
Apr 4, 8:38 AM CDTFlash Flood WarningJANAshley, Chicot6 hr
Apr 4, 8:53 AM CDTSevere Thunderstorm WarningSHVDe Soto, Sabine52 min
Apr 4, 9:16 AM CDTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River, Sabine44 min
Apr 4, 9:41 AM CDTSevere Thunderstorm WarningSHVBienville, Grant, Jackson, Natchitoches, Winn49 min
Apr 4, 10:16 AM CDTSevere Thunderstorm WarningJANEast Carroll, Madison, Morehouse, Richland, West Carroll44 min
Apr 4, 10:29 AM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, Ouachita46 min
Apr 4, 10:49 AM CDTSevere Thunderstorm WarningJANEast Carroll, Madison56 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 8.9 hours before the alert went out and 67 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2008-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1498 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2008-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1498 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1191 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 7:59 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Calhoun, Carroll, Clark and 46 more91 min
Apr 3, 8:21 PM CDTSevere Thunderstorm WatchSPCArkansas, Baxter, Benton, Boone, Calhoun, Carroll and 52 more8 hr
Apr 3, 9:49 PM CDTMesoscale DiscussionSPCArkansas, Baxter, Boone, Clark, Clay, Cleburne and 55 more86 min
Apr 3, 10:23 PM CDTSevere Thunderstorm WatchSPCClay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more4 hr
Apr 3, 11:19 PM CDTMesoscale DiscussionSPCArkansas, Calhoun, Clark, Clay, Cleburne, Cleveland and 45 more86 min
Apr 4, 12:48 AM CDTMesoscale DiscussionSPCBradley, Calhoun, Columbia, Hempstead, Lafayette, Little River and 4 more117 min
Apr 4, 1:28 AM CDTMesoscale DiscussionSPCCrittenden, Lee2 hr
Apr 4, 2:46 AM CDTSevere Thunderstorm WatchSPCLee, Phillips8 hr
Apr 4, 3:34 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 15 more56 min
Apr 4, 7:55 AM CDTMesoscale DiscussionSPCAshley, Chicot2 hr
Apr 4, 5:34 AM CDTSevere Thunderstorm WatchSPCNatchitoches, Sabine6 hr
Apr 4, 9:48 AM CDTTornado WatchSPCAcadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 23 more9 hr
Apr 4, 4:06 PM CDTMesoscale DiscussionSPCAcadia, Allen, Beauregard, Calcasieu, Evangeline, Jefferson Davis and 1 more84 min
Apr 4, 5:02 PM CDTMesoscale DiscussionSPCAscension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 16 more88 min
Apr 4, 5:48 PM CDTTornado WatchSPCAscension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 14 more6 hr
Apr 4, 5:16 AM CDTMesoscale DiscussionSPCAlcorn, Itawamba, Prentiss, Tippah, Tishomingo, Union89 min
Apr 4, 12:01 PM CDTMesoscale DiscussionSPCAmite, Clarke, Copiah, Covington, Forrest, Franklin and 18 more89 min
Apr 3, 8:33 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Clay, Collin, Cooke, Delta and 13 more9 hr
Apr 4, 1:22 AM CDTSevere Thunderstorm WatchSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 47 more9 hr
Apr 4, 4:14 AM CDTMesoscale DiscussionSPCAnderson, Bandera, Bastrop, Bell, Bexar, Blanco and 48 more91 min

Nearby

Severe Thunderstorm Watches in Arkansas, 2008Severe Thunderstorm Watches in Texas, 2008Severe Thunderstorm Watches in Louisiana, 2008Every severe thunderstorm watch in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.